At Penguicon 5.0 in 2007, Marcus Watts talks about The History of DEC. DEC made machines from the early 60's until 1998. Early machines were important at research institutions such as MIT. By 1965, DEC got into the timesharing world, and of course in the 70's (actually starting 1969), bell labs developed Unix on DEC hardware. Another major step in Unix came when DEC introduced the vax & unix was ported and then adapted to do demand paging on that hardware. The final chapters of DEC history are in the 90's where DEC comes out with the Alpha chip, a considerable technical advance, but the company isn't able to make a success of it and ends up being bought up by Compaq.